题目内容
舍伍德(Sherwood)算法是一种常用的(57)算法。
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2010年2月6日，()高速铁路正式投入运营。这是中国中西部第一条高速铁路。这条高铁全长505公里，列车运行时速350公里。两地直达最短时间由6个多小时缩短至2小时以内。
SECTION B PASSAGES
Directions: In this section, you will hear several passages. Listen to the passages carefully and then answer the questions that follow.
听力原文： It may be true, and we have to recognize obviously, that the population is badly housed and that we need more housing. However, housing uses up our scarce resources. It is pretty meaningless, therefore, to talk about providing more housing without taking into account the alternative use of resources. To provide more housing, when you have scarce resources, also implies, perhaps, making a choice between housing and other things which we could provide. Now, therefore, it's a question of priority. This is the problem which is true in U.K. market and it's also true in any housing market. The decision to provide more housing would involve giving up something. The question, therefore, arises. To what extent is the housing the greater priority than, say, health care and education so we come to the problem about choice. How are choices to be made in any economy, concerning how much housing is going to be provided？ Indeed, how are the choices going to be made in any economy about anything which is provided？.., and who is going to make that choice？ Basically, choices about how resources are allocated in any economy boil down to two possible ways of solving this problem. You either have the choices made directly by the government, or, the choices are made indirectly through the market.
What is the general topic of the lecture？
经纪机构提供中介服务,是以()为目的,通过佣金方式取得其劳动服务的报酬。
听力原文： Good morning, everyone. Thank you for joining our training course. I'm your personal trainer, Davidson, and I'm going to give a demonstration how to use this machine: the first thing you will do is sit on the machine. There will be handles by your head. Reach for the handles. You will work this best if your arms are not stretched out but at an angle. If you have to reach too high, the seat is too low. The seat is easily adjustable. Gym equipment in general is made for men. At 5 feet 4 inches tall I always put any seat I am on at the lowest or highest level depending on the piece of equipment. For those of you who know machines my setting is usually 5. I moved the seat up as high as it went and I was able to reach the upper bars without them outstretched. It was very comfortable. My feet did not need to touch the floor. The upper handles are nicely padded no need to wear gloves with this machine.
Where does this talk probably take place？
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